Hello, I have a Saab 9-5 Aero Kombi Bj 99, 200Tkm. Audio system with CD and cassette but without the sub in the rear side compartment. So far satisfied only nac h loud music pleasure it happens again and again that the battery obviously does not have enough juice to start – more than a “click” no more. Overbridge me, it jumps immediately. Even if I connect the charger at home the Batterie is usually already after 30 min fully fit again – run charger. Now I read irgedwo something of a the capacitor of the voltage peaks should “catch” so that the batter is not so affected – Saab does not have such a thing in with 200w audio ?? Does that bring something, because I have now already the third battery in it recently…. Thank you Steve